Improved evaporating-pan with tubular boiler



D. M. COOK.

Evaporating Pan.

No. 37,737. Patented Feb. 24, 1333 Inventor:

AM. PHOTD-LII 'HD. CU: N.Y. (OSBDRNES PROCESS.)

UNITED. STATES PATENT OFFICE.

D. M. COOK, OF MANSFIELD, OHIO.

IMPROVED EVAPORA'TlNG-PAN WITH TUBULAR BOILER.

Specification forming part of Letters Patent No. 37,737. dated February 24, 1863.

To all whom it may concern:

Be it known that I, D. M. 000K, of Man's field, in the county of Riehland and State of Ohio, have invented a new and Improved Shallow Evaporating-Pan and Tubular Boil- The nature of my invention consists in a shallow evaporator-pan with a deep boiler, which is divided up into narrow cells by meansof tubes, which form flame-fines, the pan and boiler being in one evaporator, as will be hereinafter described.

My invention also consists in an arrange ment of flame-directors with respect to the ordinary guards and the transverse fines of the tubes, whereby the flame is turned at right angles when it arrives at the fines, and then allowed to take a course through the flues and to the smoke-flue.

To enable others skilled in the art to make and use my invention, I will proceed to describe the sanie with reference to the drawings.

Ais the part which I term the shallow evaporating-surface, and B,'the part which I term the boiler. The size of these parts relatively may be increased or diminished. The depth of the boiler may be increased or decreased, as circumstances may demand. Through the sides of the boiler, at a point below the level of the shallow evaporating-surface A, I insert a series of oblong tubes, 0, diagonally or straight across the evaporator, as shown. These tubes divide the boiler into cells a a and form flame-fines b b. The tubes might be of any other practical form; but the form shown answers well. The fines might be secured by folding the metal by crimping, and then placing a plate under the bottom of all the folds, and closing the ends of every alternate fold. This would be the cheapest, as

the bottom of the boiler B would be formed with the folds out of one piece of metal.

It is a good plan to have the evaporatingsnrfaee extend laterally on each side of the boiler B, as shown; but I do not confine myself to such lateral extension thereof, as the boiler might extend to the sides of the pan. It is also a good plan to have the juice circulate on a zigzag course; but I do not con fine myself to any particular mode of regu lating the flow of the juice or arresting the impurities.

To direct the flame through the transverse fines, I project down from the plate which forms the bottom of the boiler, and from the bottom of the pan, an angular director, (I, the said director closing off the flame-passage on one side of the boiler, and also reflecting back the waste heat to a certain degree. On the other side of the boiler, near the rear corner,

another angular director or stop, 6, is projected down from bottom of thepan,so as to close 011' the flame-passage at that point. Thus, through the aid of the ordinary guards, f f, and these directors, the flame is compelled to take a course through the fines and then to the smoke -pipe. The arrows indicate the course of the flame or waste heat.

The pan and boiler may be arranged on a furnace of any description adapted for heating them; but the one shown will answer a good purpose.

What I claim as my invention, and desire to seeureby Letters Patent, is

1. A shallow evaporating-pan constructed with a deep boiler, when the boiler is divided into cells by means of tubes which form flameflues, substantially as herein described.

2. The arrangement of the directors d c with respect to the combined boiler and shallow evaporating-pan, substantially as and for the purpose described.

Witness my hand in the matter of my application for patent on evaporating-pan this 22d day of January, 1863.

D. M. COOK. lVitnesses:

A. T. Barns, W. H. BLYMYEB. 

